Extractor.



J. H. CASTONA.

EXTRAGTOR.

APPLICATION FILED MAY 7. 1912.

' Patented Oct. 6, 1914.

'entre statins 'irren' s JOHN H. CASTONA, OF MOSS POINT, IYIISS'ISSIPPX,ASSIGNOR TO CASTONA IMPROVED PROCESS CO., OF GULFP'OBT, MISSISSIPP, .ACORPORATION OF SOUTH DAKOTA.

EXTRACTOR.

Specification of Letters Patent.

Patented Oct. 6, 1914.

Application-.filed May 7, 1912. Serial No. 895,799.

' Moss Point, in the county of Jackson and steam injection pipes.

land out of said slots and provided with State' of Mississippi, haveinvented new and useful improvements in Extractors, ot which thefollowing is a speciiication.

This invention relates to an extractor for use in extracting turpentine,resin, etc., fromv wood.

The object of the .invention is to provide an extractor which is simpleof construction and eiicient and economical in opera-- tion, which maybe easily andV conveniently handled, operated and cleaned with aniinimum .expenditureot' time and labor, and

which is adapted to permit of the use of suitable solvents i'or theextraction of the resin and volatile constituents of the wood and enableproducts of :thigh degree ot purity to be obtained.

The invention consists of the eatures of construction, combination andarrangement of parts, hereinafter fully described and claimed, referencebeing had to the accompanying drawings, in which j Figure l is aperspective View, partly .in elevation and partly in section, of'anextractor embodying my invention, Fig. 0

is a vertical section through the top otithe extractor. Fig. 3 is adetail section on the line 3-3 of Fig. 2 through the hinge joint of the.top head or cover. Fig. 4 is a detail section showingr the sealing orjoint closing;r connection between the steam supply and Referring to thedrawings, l designates the body of the extractor, Which comprises acylinder having a dished or concavcd bottom head 2 f* d adapted to beclosed at its top by a removable head 'or cover 3. This head or cover 3is provided on its underside adjacent to its periphery withl an annulargroove Ll receiving' a packing ringy or gasket 5, which is adapted tobear against an annular abutment or seat ring;r 6 secured to the top ofthe body. Formed in the edge of the cover at spaced intervals are slots7 adapted to receive shackle bolts 8 hinged: or pivoted to the body soas to be sivung into Winged clamping nuts 9, whereby said bolts areadapted to be fastened in cover-holding position. Vt'hen the cover isclamped in position the gasket 5 is held crowded against the ring 6,thus tightly closing the extractor against the escape of heat and thevolatile elements from the wood and solvent The cover is provided at oneside With a lever arm l() firmly fastened theretol in any suitablemanner and which formed in its outer end With a socket ll adjustably re-,ceiving au extension armor rod 12 fixed within the socket by means of aset screw 13. Slidably mounted on this extension arm -is acounterbalancing weight 14 adapted to be secured .in adjusted positionby a set screw- The arm l0 is formed with a depending portion 16provided with an oblon rectangular slot 17 through which extends a block18 carrying a pivot pin or trunnions 19 journaled in bearings in spacedbrackets 20' projecting from the extractor body, `whereby thecovcr 3 ispivotally mounted on the body for opening and closing movements. Thecounterweight 14 approximately balances the Weight of the cover, so thatthe latter may be. opened and closed with a 1minimum amount of effort onthe part ot' the operator. By adjusting the arm l2 in or out and varyingthe position of the weight 14:, it is evident that the ounterweightleverage may be varied" as desired. Supported by the arm l0 is anadjusting screw 21 Which engages thejblocjk 18 and is provided with ahand Wheel :22, whereby the arm and cover may be adjusted on the pivotalsupport ,to regulate the seating of rfi the gasket 5 against theabutment\6, as Well as to permit the cover to "be pried up Withoutinjury to the gasket, in the event that the lat-ter should stick to theabutment 6.

Arranged within the extractor body is a removable perforated cage orwhich is ot` somewhat less diameter than the .body to provide anintermediate space 24 for the discharge of the volatile constituentsofthe wood and vapor from the solvent and passage of the same to acondenser through a goose-neck outlet ordischarge pipe 25 provided witha controlling valve 26.' Said cage or basket is. also of less lengththan the body and rests at its lower end against supporting lugs ormembers 27 arranged some basket 23,

comprising a central section 30 and an annular Series of segmentalsections 31, hinged or pivoted to said bodyas at 32. The body 30 isstrengthened by a reinforcing plate 33', to prevent it from bucklingunder the Weight 5 of the charge of material resting thereon, and theportion 29 and pivoted sections, 3l are perforated to permit of thegravitative discharge of the resinextracted from the charge. Pivotedlatches 34 are carried by the portion 29 to engage under the pivotedsections 31 and hold the same clamped against the'lower edge of saidportion v29, whereby the bottom of the cage is held in position. Byretracting theatches the bottom as a whole may be released to permit theparts .of the cage to be disassociated for cleaning or repairs, or oneor more of the pivoted sections may be dropped for the discharge of thecontents of the cage.

yRising from the body is a bracket 35 'and supported at its lower end bysaid body and bracket is a perforated steam supply pipe 36 which extendscentrally within and to the top of the cage and is provided at its upperend with a frusto-conical packing head 37 threaded or otherwiseadjustably mounted thereon and adapted to be held in adjusted positionby a nut 38. This packing head is adapted to engage a gasket 39 mountedupon the bottom of the cover 8,said gasket being secured to areinforcing plate e() fixed to the cover by means of a ringshapedretaining member 4l having a flange projecting beneath and confining thegasket. The surface of this flange is beveled to form a conical openingto receive the conical packing head and to enable the head to seatsteam-tight against the gasket. The pipe 30 projects through the headand through the construction described communicates with the deliveryend of a steam supply pipe 43 fixed to the cover 3 and extending throughth'e plate Ll0 and gasket, said pipe being provided with a controllingvalve 44 for controlling the flow of steam to the pipe 3G from asuitable source of supply. This construction provides' a means wherebythe pipes 36 and 4:3 are brought into registering position when thecover 3 applied, while enabling the cover to be opened withoutinterference from the pipe 36.

Thepipe 36 is provided for distributing steam uniformly through the massof chi s or commin'utod Wood contained Within t c iaiaceo cage,.wherebythe volatile constituents of the wood are driven olf and the rosinextracted, such constituents passing with the steam into the space 2land thence to the condenser through the pipe ln order to enable asolvent to be employed'in connec-L tion with the steam for thepurposeofv extraction, a coiled'spray pipe 45 is arranged beneath the cover 3to distribute the solvent uniformly to the 'charge of Wood, and this 7coil `connects with a conducting -pipe 46 suitably mounted upon thecover and extending therethrough and provided with a valve 47 forcontrolling the flow of the solvent to the coil from a suitable sourceof' supply.

The rosin extracted from the Wood and passing through the perforatedbottom of4 the cage flows through a fine screen or grating 48 supportedby a iange or lugs i9 secured to the body l immediately above apartition plate or false bottom 50 arranged. between said screen and thebottom 2. This supplemental or false bottom S0 is dished like the bottom2fand arranged in spaced relation thereto to provide a heating chamber5l and a collection space or chamber Extending through the side of thebody l into the chamber 52 between the elep ments 48 and 50 isaperforated steam supply 95 pipe 53 providedon the exterior with acontrolling -valve`54,A through which pipe steam may be supplied to thechamber 52 to keepr the extracted rosin heated for a free discharge andprevent it from hardening on the 00 bottom 50. The dished form of thebottom `5() provides a sloping surface leading to an annular gutter orchannel 54 into which the rosin flows, and from which it may beWithdrawn througlrone or more drain pipes 55 105 having a controllingvalve 56. A steam supply pipe 57 provided with a controlling valve 58communicates with one side of the heating chamlier 51 for the supply ofsteam thereto, and discharge pipe 59 provided 110.

with a controlling valve 50 is provided at the diametric'ally oppositeside of said chamber for the exhaust of steam and discharge of the waterof'condcnsation. The dished form of the bottom V.2 also provides.

a sloping surface leading to a depressed gutter or channel I(il `wherebythe drainage f off of the water of condensation is facilitated. Arrangedin the pipe 57 between the valve 58 and the body lis a gage 62,Where-120 by the pressure of' the steam contained within the chamber y5l maybe determined at any time. Gages 63 and.` 64 are provided near the topand at the bottom of the body l to respectively indicate the normalmaxi- 1,25 mum level of the liquid solvent inthe ex? r tractor andits'minimurtideVel'Whenit has been evaporated and exhausted by theaction of the steam. The body l may also be provided with a thermometeror temperature gage G5, whereby its internal tempera- I ture may bereadily ascertained at any time in the extraction operation.

In operation, the cage containing a charge of suitably divided orcomminnted wood is placed within the extractor l4 and the cover closedto hermetically seal the extractor. The' valve in the steam supply pipethen opened for the flow of steam through the perforated pipe 3G and itsdistribution throughout the mass of the material, whereby thevolatileconstituents and resin are freed, the volatile constituentspassing with the steam through the pipe to the con denser, while therosin gravitates downward into the chamber The valve 5-1- in the pipefrmay be opened when necessary or de sirable to augment the heat at thebottom of the extractor to keep the rosin in a liquefied condition andfacilitate its discharge through the'pipe 55, ne Well to prevent it frombecoming deposited in a har dened condition'on the upper head 50. Itdeeirod. steam inay also be admitted into the chamber 5l to augment theten'iperature to a still higher degree and n'iaintain aneventeniperature throughout the extractor, by which all ot the volatileconstituents', resin` etc., contained in the wood will be driven otl'and obtained in a rapid' and ccoinunical manner. It it is desired toemploy a lsolvent. in theproccssl ot' extractil'Jn, the 'alve 4T isopened to permit a suitable solvent to spray into the top, of the cagethrough the coil l-), so that the .solvent will percolatc tlfirougrh themass of the material and will be vaporized with the volatileconstituents of the wood and discharge with the saine through the pipe25. ln the use of such an agent, the intia'iduction of steam into thechamlaxrs 5l and prevents the solvent from remaining` in liquidcondition at the bottom o't' the extractor and cllccts its convergenceinto vapor. so that the turpentine and other volatile constituents` willbe discharged Vl'or recovery in highly pure condition. rttcr the chargecontained within the cane has been subjected to the processbf treatment`the valves are closed to cnt dit the flow ot' steam or solvent to.thcextractor` the cover Il swingtopen and the cage with its contentsremoved, that upon rctractin'g the latches Si therefnse may bedischarged and the caer placed in condition for subsequent usc;

The material adyai'itageof the construc- .tionoi extractor disclosedresides in the fact that the material is subjected to an even degree of`heat throughout-and the resin prevented from .clinging in thebottom ofthe extractor, whereby pure volatile products are"obtained'.andthe partsof the extractor maintained in such condition `that they may beradilypand conveniently cleansed When- By mounting the cover 5 1 in thedescribed manner, it inay be easily and conveniently handled and theoperation carried out without requiring' the service of more than asingle attendant, with resultant economy.`

Havingr thus described the invention, what I claim as new i.'sj:- i

1. An extractor ot the character described comprising a verticallydispofied outer vessel haring an extraction chamber, a Vapor out let atits top, a bottom heating chamber, and a` bottom rosin collection spacebetween the extraction chamber and heatiner vchamber and incommunication with the former and out of communication ivith the latter,means for heatingsaid heatingr chamber, a receptacle for the materialbeing treated disposed lonnitudinallftY within the extraction chamber`said receptacle having a perforate bot- -tom and sides 'and spaced fromtheo/liter vessel tor the escape of vapors into the in terveningr space,a pipe or tubev extending` vertically and axially through thereceptacle, said pipe beiner pertorate throughout its length for theinjection of an extracting agent throughout the mass ofmaterialcontained therein, and means .for supplyingr thel extractingagi'ent to said perfor-ate pipe or tube. i

An extractor of the character described comprising* an extractingvessel, a. cover 'for closing' thc upper end thereof, said cover havinglan openingr therein', a steam supply p ipe, fitting within saidopening', a retaining ring arranged upon the under side of the 100 corcrand pro'vidcd with Ya conical socket, a ."ahng gasket secured tothe-cover by said retainingr ring and exposed within said socket. aremovable perforated cage arranged within the vesstel and i-n spaced re-105 lation thereto, a perforated steam injection pipe secured at 'itslower end to the bottom of the cage and extending npwardlyto t'he top otthe cage, the upper end oi said injection pipe being,r adapted to enters'aid socket in the retaining. ring' and register with th'eleteani'supply pipe when the cover is'closcd, and a conicalenlargementupon saidsteani injection pipe adapted for sealing,r contactwith said gasket socket. l

2i. An extractor of the character described comprisingan'.extractingvessel open at. its top and provided at its bottom withinpair ot supcrpoeed'heads forming, a steam'cl'ianb 120 ber and acollection space above the samen perforated cage supported `within thevessel and in spaced relation theretol and teiininatinpfabove saidcollection space, steam snpj plyand exhaust pipes communicating with 125said steam chamber, a steam injection coil arranged within thecollection space :rnd between the saine and `the lower endiof theperforated cage, means for closing the upper ends of 'the vessel andperforated cage, a 130 and to enter 'said conical 115 perforated' steaminjectionl pipe supported at its lower end by the cage'and extendingupwardlythereinto, and a steamsupply pipe carried by the cover andadapted to register with the perforated steam injection pipe whenthecov'er is closed. v

4. An extractor of the characteidescribed comprising an extractingvessel open at its `upper end and provided at 4its loweil end withw apair of spaced superposed concavon convex heads, forming a bottom steamcham; ber closed againstcommunication,with the vessel and al collectionspace above said chamber and in communication with the vessel, steamsupply and exhaust pipes communicating with the steam chamber, a

l valveid outlet for the rosinl communicating spaced witlrthecolle'ctionspace', an outlet for the vapors at the upper portion of the vessel, aperforated cage support Within and in spaced relation to the vessel andterminating above said collection space, a cover for closing the top ofthe vessel, a perforated steam ingection pipesupported at its 'lower endby the cage, and a steam supplypipe extending through the cover andadapted for connection with the perforated injection pipe when 4thecover is closed` 5. An extractor of the character described comprising.e vessel open at its top and provided at its bottom with--a..p air ofsteam chamber out `o`f communication with the vessel and an uppercollection chamber in communication with the vessel, steam supply andexhaust pipes communicating` with the steamk chamber, an outlet for therosin communicating; with the collection'space, a

perforated cage supported within and in spaced relation to the vesseland terminating above the collection space, a perforated space, a coverforclosing the top of the ves-,

' exhaust pipes chamber, a valved outlet for the dresin com-r 'let forthe vapors superposed heads forming a lower.-

mia-,eso

steam coil disposed" within the colsr sel, ay perforated steam injectionpipe sup ported at its lower end by ythe cage and eX- tend-ing upwardlythereinto, anda stemav supply pipe supportedby the cover and adaptedforv connection with the perforated4 steam injection pipe when the cover is.

closed.

6. An extractor ofthe character described l comprising an extractingvessel open at its upper end and provided at its lower end' with a pairof spaced superposed heads, forming a bottom steam chamber closedagainst coinmunication with the vesseland a collection.

Space above said chamber and in'commun cation with the vessel, the steamsupply and communicating with the steam municating with the collectionspace, an' out-f at the upperportion 'of the vessel, a cover for closingthe top of the ves-V sel, a perforated cage removably supported Withinand in spaced relation 'to the vessel and terminating above saidcollection space,

-a perforated steam injection pipe arranged Within the cage, asteamsupply pipe carried by the cover and adapted for communica'- l tionwith said injection pipe when the cover is closed, a perforated steamcoil disposed within the collection space, a perforated plate ordiaphragm disposed coil and the lower end of the cage, and a perforatedcoil carried by the cover and prel jecti-ng into the top of the cage. .l

` In testimony whereof I aflix my signature in presence of twowitnesses. 1 y

,JOHN H. CASTONA.

Witnesses:

WILLIAM E. THOMAS, FRANK LINDNER.

between said y

